Soundmind Posted September 7, 2011 Report Share Posted September 7, 2011 I have 2 Lectrosoncis UCR 401(blk 26 and 27) and a Zaxcom TRX900s [edit: Block 25] in my bag. When I do a frequency scan with the TRX900s off, there are very little RF activity, but when the TRX 900s is turned on, there are RF activities through out the spectrum of both UCR 401s which reduced my range greatly. I am using a UM 400 with the blk 26 and a UH400 for the blk 27. I experience occasional dropout on the UM when the talent moves around. Question: 1) Should I stop using the Zaxcom together with the Lectrosonics? 2) Where should I best position my TRX900s? 3) Should I use a high powered transmitter, ie UM 450 or SQMa minimize the problem? Thank You! Thanks! Quote Link to comment Share on other sites More sharing options...
soundslikejustin Posted September 7, 2011 Report Share Posted September 7, 2011 What block is the 900S in? Quote Link to comment Share on other sites More sharing options...
Soundmind Posted September 7, 2011 Author Report Share Posted September 7, 2011 What block is the 900S in? Block 25 Quote Link to comment Share on other sites More sharing options...
soundslikejustin Posted September 7, 2011 Report Share Posted September 7, 2011 RF spray from Zaxcom TX's has been greatly documented on this site, I've never seen an issue with a receiver reported though... Some people have success with RF blocking fabric, best practice is to move the offending component as far away from the others as possible (external pouches on petrol bags work well) Quote Link to comment Share on other sites More sharing options...
Soundmind Posted September 7, 2011 Author Report Share Posted September 7, 2011 RF spray from Zaxcom TX's has been greatly documented on this site, I've never seen an issue with a receiver reported though... Some people have success with RF blocking fabric, best practice is to move the offending component as far away from the others as possible (external pouches on petrol bags work well) Thanks for the suggestion. I have tried to place the TRX 900s on my harness and on a pouch (but still connected to the bag). I guess I will try with an external pouch like a waist pouch. Quote Link to comment Share on other sites More sharing options...
studiomprd Posted September 7, 2011 Report Share Posted September 7, 2011 Separation! physical, and frequency! also: filtered antenna (Zaxcom). well known issue, try searching Quote Link to comment Share on other sites More sharing options...
greg sextro Posted September 11, 2011 Report Share Posted September 11, 2011 Perhaps you should consider upgrading the 401s to 411s. I've noticed some blanket RF from a qrx 100 (no ifb) into my lectros (411s and 211s) too, so your not alone. Quote Link to comment Share on other sites More sharing options...
Derek H Posted September 11, 2011 Report Share Posted September 11, 2011 If you can, swap out the Zaxcom gear for the same stuff in a lower block. 3+ blocks of separation between a Zaxcom transmitter and any other RF receiver seems to be a good rule of thumb. See if you can get it in block 20-23. The other suggestions here are also good but getting the zax frequency farther away from your other RF will do the most good in my opinion. Quote Link to comment Share on other sites More sharing options...
Jack Norflus Posted September 11, 2011 Report Share Posted September 11, 2011 If you can, swap out the Zaxcom gear for the same stuff in a lower block. 3+ blocks of separation between a Zaxcom transmitter and any other RF receiver seems to be a good rule of thumb. See if you can get it in block 20-23. The other suggestions here are also good but getting the zax frequency farther away from your other RF will do the most good in my opinion. Not sure of the cost - but Zaxcom can do a block change. Quote Link to comment Share on other sites More sharing options...
Michael McQueen Posted September 11, 2011 Report Share Posted September 11, 2011 Not using a filtered ant? I had one of my 211's same block as the zax system and was good to go. But I was using filtered ant clipped up on my harness. Quote Link to comment Share on other sites More sharing options...
Soundmind Posted September 13, 2011 Author Report Share Posted September 13, 2011 Thanks for all your replies. I will have 2 weeks to resolve this problem before I head out with the Zaxcom again. Quote Link to comment Share on other sites More sharing options...
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